AFAIK what you are trying is not possible: http://qt-project.org/doc/qt-4.8/threads-modules.html#threads-and-the-sql-module
Best, Lorenz Am 30.05.2013 18:03, schrieb Witold E Wolski: > I am using threading to speed up compuation. Each thread produces some > results which I would like to store in a sqlite file. > > My idea is to have something like an monitor object which has an > QSqlDatabase member > and a insert method which is synchronized using a mutex. > > The problem I am actually running into is that the QSqlDatabase member > gets ??? once the pointer to the Monitor object is passed into to the > threads. > > > when asked in the thread it claims to be isOpen and to be isValid but all > the inserts on it fail with > > insert Feature: Parameter count mismatch > > On the other hand if I construct the same object within the thread than > everything works fine. > So the instert statements are definitely correct. > > Any ideas ? by the way I am using the tbb for threading. > > Witold > > > > _______________________________________________ > Interest mailing list > Interest@qt-project.org > http://lists.qt-project.org/mailman/listinfo/interest > _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
